Click the Trusses icon in the ribbon menu .
The trusses toolbar will open. Here Settings, click the icon.
The Trusses Settings dialog will be displayed. Here Lengths ,click the tab.
Enter the value for the trusses width. The value you enter will be the unit size for the trusses and the edits made in the trusses settings dialog will also be based.
Choose from left aligned, centered, right aligned and user-defined options.
When you exit the dialog by saying OK, your trusses will be created according to the approach type you choose.
If you create the trusses longer or shorter than the value you entered, the trusses width will change automatically, it will show the width of the trusses you have created.